Bibliometric analysis of tumor necrosis factor in post-stroke neuroinflammation from 2003 to 2021.

To enhance the visualization, after normalization (each country’s annual issuance divided by its overall national issuance separately) it represents that China’s research in this area has been on an increasing trend since 2003, the US annual issuance has been relatively stable, and after 2012, the major research countries have increased their research momentum ( Figure 3B ).

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